Classifications

• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
  • C03C3/00—Glass compositions
  • C03C3/04—Glass compositions containing silica
  • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
  • C03C3/095—Glass compositions containing silica with 40% to 90% silica, by weight containing rare earths
• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
  • C03C3/00—Glass compositions
  • C03C3/04—Glass compositions containing silica
  • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
  • C03C3/00—Glass compositions
  • C03C3/04—Glass compositions containing silica
  • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
  • C03C3/078—Glass compositions containing silica with 40% to 90% silica, by weight containing an oxide of a divalent metal, e.g. an oxide of zinc
• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
  • C03C3/00—Glass compositions
  • C03C3/04—Glass compositions containing silica
  • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
  • C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
  • C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
  • C03C3/00—Glass compositions
  • C03C3/04—Glass compositions containing silica
  • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
  • C03C3/097—Glass compositions containing silica with 40% to 90% silica, by weight containing phosphorus, niobium or tantalum
• • G—PHYSICS
  • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
  • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
  • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
  • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements

Definitions

• the present disclosure is generally related to novel glass based articles.
• Glass is a brittle material which can sometimes break during use.
• the fracture toughness of commercially used glasses is usually close to or below 0.8 MPa*m° 5 .
• glasses, such as transparent glasses with high fracture toughness to improve damage resistance and/or drop performance.
• the present disclosure provides a glass based article comprising S1O2 in a range from about 20 mol% to about 80 mol%; AI2O3 in a range from about 2 mol% to about 60 mol%; MgO; L12O; La203 in an amount greater than or equal to about 3 mol%; a sum of alkali metal oxides (R2O) is greater than or equal to about 6 mol%; and a sum of MgO and AI2O3 is greater than or equal to about 28 mol%, wherein the glass based article is free of BeO.
• FIG. 1A is a plan view of an exemplary electronic device incorporating any of the glass based articles disclosed herein.
• FIG. IB is a perspective view of the exemplary electronic device of FIG. 1A.
• transitional phrase "consists essentially of,” or variations such as “consist essentially of or “consisting essentially of,” excludes any element, step, or ingredient not recited except for those that do not materially change the basic or novel properties of the specified method, structure or composition.
• the term "about” modifying a value related to the disclosure refers to variation in the numerical quantity that can occur, for example, through routine testing and handling; through inadvertent error in such testing and handling; through differences in the manufacture, source, or purity of ingredients employed in the disclosure; and the like. Whether or not modified by the term “about”, the claims include equivalents of the recited quantities. In one embodiment, the term “about” means within 10% of the reported numerical value.
• glass based article and “glass based articles” are used in their broadest sense to include any object made wholly or partly of glass and includes glass ceramics. As used herein, a glass ceramic has an amorphous phase and one or more crystalline phases.
• the present disclosure provides a glass based article including LaiC .
• the glass based article comprises S1O2, AI2O3, La203, MgO, L12O, and is free of BeO.
• the glass based article consists of or consisting essentially of S1O2, AI2O3, La2C>3, MgO, L12O.
• the glass based article described herein can include various amount of silica, or
• S1O2 is the primary glass forming oxide, which forms the network backbone for the glass.
• Pure S1O2 is incompatible with most manufacturing processes owing to its extremely high melting temperature. Since the viscosity of pure S1O2 or high-SiC glasses is too high in the melting region, defects such as fining bubbles may appear, and erosion of refractories and degradation of platinum may become too extreme to permit long-term manufacturing in a continuous process. Furthermore, as silica concentration increases, the liquidus temperature may increase due to increasing stability of cristobalite, a crystalline polymorph of S1O2 that is an undesirable devitrification phase in a continuous process.
• the concentration of S1O2 can be in a range from about 20 mol% to about 80 mol% (e.g., about 25 mol%, about 30 mol%, about 35 mol%, about 40 mol%, about 45 mol%, about 50 mol%, about 55 mol%, about 60 mol%, about 65 mol%, about 70 mol%, about 75 mol%, about 80 mol%, or any ranges between the specified values).
• the concentration of S1O2 ranges from about 20 mol% to about 75 mol%, about 20 mol% to about 70 mol%, about 20 mol% to about 65 mol%, about 20 mol% to about 60 mol%, about 25 mol% to about 80 mol%, about 25 mol% to about 75 mol%, about 25 mol% to about 70 mol%, about 25 mol% to about 65 mol%, about 25 mol% to about 60 mol%, about 30 mol% to about 80 mol%, about 30 mol% to about 75 mol%, about 30 mol% to about 70 mol%, about 30 mol% to about 65 mol%, about 30 mol% to about 60 mol%, about 35 mol% to about 80 mol%, about 35 mol% to about 75 mol%, about 35 mol% to about 70 mol%, about 35 mol% to about 65 mol%, about 35 mol% to about 60 mol%, about 40 mol% to about 80
• the glass based article described herein typically includes aluminum oxide, or
• AI2O3 can also serves as a glass former. Like S1O2, AI2O3 can also contribute rigidity to the glass network due to its tetrahedral coordination. Similarly, an increase in AI2O3 content relative to other glass modifier oxides generally results in decreased density, decreased coefficient of thermal expansion, and improved durability. However, the concentration of AI2O3 cannot be too high. For example, when the concentration is too high, AI2O3 can promote the dissolution of zircon refractory material, which can lead to fusion line zirconia defects, and can lead to a softening point that is unfavorably high for 3D glass forming. Thus, the amounts of AI2O3 are adjusted to balance these various properties.
• the concentration of AI2O3 can range from about 2 mol% to about 60 mol% (e.g., about 1 mol%, about 2 mol%, about 3 mol%, about 4 mol%, about 5 mol%, about 6 mol%, about 7 mol%, about 8 mol%, about 9 mol%, about 10 mol%, about 11 mol%, about 12 mol%, about 13 mol%, about 14 mol%, about 15 mol%, about 20 mol%, about 25 mol%, about 30 mol%, about 35 mol%, about 40 mol%, about 45 mol%, about 50 mol%, about 60 mol%, or any ranges between the specified values).
• the concentration of AI2O3 ranges from about 2 mol% to about 55 mol%, about 2 mol% to about 50 mol%, about 2 mol% to about 45 mol%, about 2 mol% to about 40 mol%, about 2 mol% to about 35 mol%, about 2 mol% to about 30 mol%, about 2 mol% to about 25 mol%, about 2 mol% to about 20 mol%, about 2 mol% to about 15 mol%, about 2 mol% to about 10 mol%, about 4 mol% to about 60 mol%, about 4 mol% to about 55 mol%, about 4 mol% to about 50 mol%, about 4 mol% to about 45 mol%, about 4 mol% to about 40 mol%, about 4 mol% to about 35 mol%, about 4 mol% to about 30 mol%, about 4 mol% to about 25 mol%, about 4 mol% to about 20 mol%, about 4 mol% to about 15 mol%, about 2 mol
• the glass based article described herein comprises
• La203 is important to increase the bonding strength and reduce the angular constraint.
• a concentration of LaiC can increase the melting temperature and render the composition incompatible with most manufacturing processes and can promote crystallization.
• the concentration of LaiC can be greater than or equal to about 3 mol%, about 4 mol%, about 5 mol%, about 6 mol%, about 7 mol%, about 8 mol%, about 9 mol%, about 10 mol%, about 11 mol%, about 12 mol%, about 13 mol%, about 14 mol%, about 15 mol%, about 16 mol%, about 17 mol%, about 18 mol%, or any ranges between the specified values).
• the concentration of La203 ranges from about 3 mol% to about 18 mol%, about 3 mol% to about 15 mol%, about 3 mol% to about 10 mol%, about 5 mol% to about 18 mol%, about 5 mol% to about 15 mol%, about 5 mol% to about 10 mol%, about 10 mol% to about 18 mol%, about 10 mol% to about 15 mol%, or any ranges and subranges therebetween.
• the glass based article described herein comprises magnesium oxide, or MgO. While not wishing to be bound by theories, it is believed that MgO has high field strength, which increases the Young's modulus of the glass based article. However too high a concentration of MgO can promote crystallization.
• the concentration of MgO range from about 1 mol% to about 42 mol% (e.g., about 1 mol%, about 2 mol%, about 3 mol%, about 4 mol%, about 5 mol%, about 6 mol%, about 7 mol%, about 8 mol%, about 9 mol%, about 10 mol%, about 15 mol%, about 20 mol%, about 25 mol%, about 30 mol%, about 32 mol%, about 35 mol%, about 37 mol%, about 40 mol%, about 42 mol%, or any ranges between the specified values).
• the concentration of MgO ranges from about 1 mol% to about 42 mol%, about 1 mol% to about 40 mol%, about 1 mol% to about 37 mol%, about 1 mol% to about 35 mol%, about 1 mol% to about 32 mol%, about 1 mol% to about 30 mol%, about 1 mol% to about 25 mol%, about 1 mol% to about 20 mol%, about 1 mol% to about 15 mol%, about 1 mol% to about 10 mol%, about 2 mol% to about 42 mol%, about 2 mol% to about 40 mol%, about 2 mol% to about 37 mol%, about 2 mol% to about 35 mol%, about 2 mol% to about 32 mol%, about 2 mol% to about 30 mol%, about 2 mol% to about 25 mol%, about 2 mol% to about 20 mol%, about 2 mol% to about 15 mol%, about 2 mol% to about 10 mol%, about
• the glass based articles described herein comprises one or more alkali metal oxides, or R2O where R is an alkali metal such as lithium, sodium, potassium, rubidium, or cesium.
• the glass based articles comprise one or more of L12O, Na20, K2O, Rb20, or CS2O, two or more of L12O, Na20, K2O, Rb20, or CS2O, three or more of L12O, Na20, K2O, Rb20, or CS2O, or four or more of L12O, Na20, K2O, Rb20, or CS2O.
• the glass based articles may comprise only L12O, only Na20, or only K2O.
• the glass base articles may comprise only L12O and Na20, only L12O and K2O, or only K2O and Na20.
• Alkali metal oxides allow the glass based article to be ion exchanged to chemically strengthen the glass based article.
• Alkali metal oxides having an alkali metal with a small ionic radius such as lithium or sodium also have high field strength, which increases the Young's modulus of the glass based article. However too high a concentration of alkali metal oxides can increase the tendency for crystallization.
• the concentration of the sum of the alkali metal oxides can be greater than or equal to about 5 mol%, about 6 mol%, about 7 mol%, about 8 mol%, about 9 mol%, about 10 mol%, about 1 1 mol%, about 12 mol%, about 13 mol%, about 14 mol%, about 15 mol%, about 16 mol%, about 17 mol%, about 18 mol%, about 19 mol%, about 20 mol% or any ranges between the specified values).
• the concentration of the sum of the alkali metal oxides can range from about 6 mol% to about 20 mol%, about 6 mol% to about 18 mol%, about 6 mol% to about 15 mol%, about 6 mol% to about 12 mol%, about 6 mol% to about 10 mol%, about 8 mol% to about 20 mol%, about 8 mol% to about 18 mol%, about 8 mol% to about 15 mol%, about 8 mol% to about 12 mol%, about 8 mol% to about 10 mol%, about 10 mol% to about 20 mol%, about 10 mol% to about 18 mol%, about 10 mol% to about 15 mol%, about 10 mol% to about 12 mol%, or any ranges and subranges therebetween.
• the individual alkali metal oxides can have a concentration in a range from about 4 mol% to about 18 mol%, about 4 mol% to about 15 mol%, about 4 mol% to about 12 mol%, about 4 mol% to about 10 mol%, about 5 mol% to about 18 mol%, about 5 mol% to about 15 mol%, about 5 mol% to about 12 mol%, about 5 mol% to about 10 mol%, 6 mol% to about 20 mol%, about 6 mol% to about 18 mol%, about 6 mol% to about 15 mol%, about 6 mol% to about 12 mol%, about 6 mol% to about 10 mol%, about 8 mol% to about 20 mol%, about 8 mol% to about 18 mol%, about 8 mol% to about 15 mol%, about 8 mol% to about 12 mol%, about 8 mol% to about 10 mol%, about 10 mol% to about 20 mol%, about 8 mol% to about 18
• a sum of the concentration of MgO and AI2O3 can be greater than about 28 mol%, about 29 mol%, about 30 mol%, about 3 1 mol%, about 32 mol%, about 33 mol%, about 34 mol%, about 35 mol%, about 36 mol%, about 37 mol%, about 38 mol%, about 39 mol%, about 40 mol%, about 41 mol%, about 42 mol%, or about 43 mol%.
• a sum of the concentration of MgO and AI2O3 can be in a range from greater than about 28 mol% to about 43 mol%, greater than about 28 mol% to about 41 mol%, greater than about 28 mol% to about 37 mol%, greater than about 28 mol% to about 35 mol%, greater than about 28 mol% to about 33 mol%, greater than about 28 mol% to about 30 mol%, greater than about 30 mol% to about 43 mol%, about 30 mol% to about 41 mol%, about 30 mol% to about 37 mol%, about 30 mol% to about 35 mol%, about 30 mol% to about 33 mol%, greater than about 33 mol% to about 43 mol%, about 33 mol% to about 41 mol%, about 33 mol% to about 37 mol%, about 33 mol% to about 35 mol%, greater than about 35 mol% to about 43 mol%, about 35 mol% to about 41 mol%, about 35 mol% to about 41 mol
• the glass based article is free of one or more of BeO,
• the term "free of” means that the component is not added as a component of the batch material even though the component may be present in the final glass based article in very small amounts as a contaminate, such as less than 0.1 mol%.
• the glassed based articles described herein can have one or more of the following properties.
• the glass based article exhibits high fracture toughness.
• the glass based article exhibits a high Young's modulus value, which can lead to high hardness.
• the glass based article exhibits a low stress optical coefficient (SOC).
• SOC stress optical coefficient
• the glass based article can be substantially transparent in the visible spectrum.
• this disclosure provides a glass based article characterized by a high fracture toughness.
• the glass based article can have a fracture toughness values of at least 0.8 MPa*m° 5 (e.g., at least 0.85 MPa*m° 5 , at least 0.9 MPa*m° 5 , at least 0.95 MPa*m° 5 , at least 1 MPa*m 0 5 ).
• the glass based article can have a fracture toughness values of about 0.8 MPa*m 0 5 , about 0.85 MPa*m 0 5 , about 0.9 MPa*m 0 5 , about 0.95 MPa*m 0 5 , about 1 MPa*m 0 5 , about 1.1 MPa*m 0 5 , about 1.2 MPa*m 0 5 , about 1.3 MPa*m 0 5 , or any ranges and subranges between the specified values.
• the glass based article can have a fracture toughness values in a range from about 0.8 MPa*m 0 5 to about 1.3 MPa*m 0 5 , about 0.8 MPa*m 0 5 to about 1 MPa*m 0 5 , about 0.85 MPa*m 0 5 to about 1.3 MPa*m 0 5 , about 0.85 MPa*m 0 5 to about 1 MPa*m 0 5 , about 0.9 MPa*m 0 5 to about 1.3 MPa*m 0 5 , about 0.9 MPa*m 0 5 to about 1 MPa*m 0 5 , about 0.95 MPa*m 0 5 to about 1.3 MPa*m 0 5 , about 0.95 MPa*m 0 5 to about 1 MPa*m 0 5 , or any ranges and subranges therebetween.
• the fracture toughness value (Kic) recited in this disclosure refers to a value as measured by chevron notched short bar (CNSB) method disclosed in Reddy, K.P.R. et al, "Fracture Toughness Measurement of Glass and Ceramic Materials Using Chevron-Notched Specimens," J. Am. Ceram. Soc, 71 [6], C-310-C-313 (1988) except that Y* m is calculated using equation 5 of Bubsey, R.T.
• CCSB chevron notched short bar
• this disclosure also provides a glass based article characterized by a high Young's modulus value.
• Young's modulus value can reflect the hardness of the glass based article.
• the glass based article can have a Young's modulus value of at least 90 GPa (e.g., at least 95 GPa; at least 100 GPa; at least 105 GPa; at least 1 10 GPa; at least 120 GPa; at least 130 GPa; or at least 140 GPa).
• the glass based article can have a Young's modulus value of about 90 GPa; about 95 GPa; about 100 GPa; about 105 GPa; about 110 GPa; about 120 GPa, about 130 GPa, about 140 GPa, or any ranges and subranges between the specified values.
• the glass based article has a Young's modulus value in a range from about 90 GPa to about 140 GPa, about 90 GPa to about 135 GPa, about 90 GPa to about 130 GPa, about 90 GPa to about 125 GPa, about 90 GPa to about 120 GPa, about 90 GPa to about 1 15 GPa, about 90 GPa to about 1 10 GPa, about 95 GPa to about 140 GPa, about 95 GPa to about 135 GPa, about 95 GPa to about 130 GPa, about 95 GPa to about 125 GPa, about 95 GPa to about 120 GPa, about 95 GPa to about 115 GPa, about 95 GPa to about 110 GPa, about 100 GPa to about 140 GPa, about 100 GPa to about 135 GPa, about 100 GPa to about 130 GPa, about 100 GPa to about 125 GPa, about 100 GPa to about to 100
• the Young's modulus value recited in this disclosure refers to a value (converted into GPa) as measured by a resonant ultrasonic spectroscopy technique of the general type set forth in ASTM E2001-13, titled "Standard Guide for Resonant Ultrasound Spectroscopy for Defect Detection in Both Metallic and Non-metallic Parts.”
• this disclosure also provides a glass based article characterized by a low stress optical coefficient (SOC).
• SOC is related to the birefringence of the glass.
• the glass based article can have a SOC of not more than 3 Brewster (e.g., not more than 2 Brewster, not more than 1.5 Brewster, or not more than 1 Brewster).
• the glass based article has a SOC of about 1.3 Brewster, about 1.5 Brewster, about 1.7 Brewster, about 1.9 Brewster, about 2 Brewster, or any ranges between the specified values.
• the glass based article has a SOC of about 1.3 Brewster to about 2 Brewster.
• SOC values can be measured as set forth in Procedure C (Glass Disc Method) of ASTM standard C770-16, entitled “Standard Test Method for Measurement of Glass Stress-Optical Coefficient.”
• the glass based articles described herein can be characterized by more than one properties of fracture toughness, Young's modulus, and stress optical coefficient.
• the glass based article described herein can be characterized by (i) a fracture toughness of at least 0.8 MPa*m° 5 ; (ii) a Young's modulus value of at least 90 GPa; and/or (iii) a stress optical coefficient (SOC) of not more than 3 Brewster
• the glass based article is substantially transparent.
• the glass based articles described herein can have various applications, for example, where a high fracture toughness is desired. Those skilled in the art would understand that the glass based articles described herein can take various shapes, thickness, etc. according to its specific applications.
• the glass based articles disclosed herein may be incorporated into another article such as an article with a display (or display articles) (e.g., consumer electronics, including mobile phones, tablets, computers, laptops, navigation systems, and the like), architectural articles, transportation articles (e.g., automotive, trains, aircraft, sea craft, etc.), appliance articles, or any article that requires some transparency, scratch-resistance, abrasion resistance or a combination thereof.
• a display or display articles
• FIGs. 1A and IB An exemplary article incorporating any of the glass based articles disclosed herein is shown in FIGs. 1A and IB. Specifically, FIGs.
• FIG. 1A and IB show a consumer electronic device 100 including a housing 102 having front 104, back 106, and side 108 surfaces; electrical components (not shown) that are at least partially inside or entirely within the housing and including at least a controller, a memory, and a display 110 at or adjacent to the front surface of the housing; and a cover substrate 112 at or over the front surface of the housing such that it is over the display.
• at least one of a portion of the housing 102 or the cover substrate 112 may include any of the glass based articles disclosed herein.
• the actual batch ingredients may comprise any materials, either oxides, or other compounds, which, when melted together with the other batch components, will be converted into the desired oxide in the proper proportions.
• the glass properties set forth in Table I were determined in accordance with techniques conventional in the glass art.
• the linear coefficient of thermal expansion (CTE) over the temperature range 0-300°C is expressed in terms of ppm/K and was determined from fiber elongation technique, ASTM reference E228-11.
• the density was determined using the buoyancy method of ASTM C693-93(2013).
• Young's modulus values in terms of GPa, shear modulus values in terms of GPa, and Poisson's ratio were determined using a resonant ultrasonic spectroscopy technique of the general type set forth in ASTM E2001-13.
• the annealing point and strain point were determined using the beam bending viscosity method of ASTM C598-93(2013).
• the softening point was determined using the parallel plate viscosity method of ASTM C338-93(2013). Stress optical coefficient (SOC) values can be measured by Procedure C (Glass Disc Method) of ASTM standard C770-16 Fracture Toughness (Kic [MPa*m° 5 ]) was determined using the method described above.
• a glass based article comprises:
• AI2O3 in a range from about 2 mol% to about 60 mol%
• La203 in an amount greater than or equal to about 3 mol%
• a sum of alkali metal oxides (R2O) is greater than or equal to about 6 mol%; and a sum of MgO and AI2O3 is greater than or equal to about 28 mol%,
• the glass based article is free of BeO.
• a Young's modulus value is at least 90 GPa; and/or (iii) a stress optical coefficient (SOC) is not more than 3 Brewster.
• MgO in the range of about 1 mol% to about 42 mol%
• R2O is in a range from about 6 mol% to about 15 mol%.
• AI2O3 in the range of about 4 mol% to about 50 mol%.
• AI2O3 in the range of about 8 mol% to about 40 mol%.
• AI2O3 in the range of about 4 mol% to about 50 mol%
• MgO in the range of about 2 mol% to about 37 mol%
• R2O is in a range in a range from about 6 mol% to about 15 mol%.
• AI2O3 in the range of about 8 mol% to about 40 mol%
• MgO in the range of about 3 mol% to about 32 mol%
• R2O is in a range in a range from about 6 mol% to about 15 mol%.
• a consumer electronic device comprises:
• a housing comprising a front surface, a back surface and side surfaces; electrical components at least partially within the housing, the electrical components comprising at least a controller, a memory, and a display, the display at or adjacent the front surface of the housing; and
• a cover substrate disposed over the display
• At least one of a portion of the housing or the cover substrate comprises the glass based article of any preceding aspect.

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• 2018
  • 2018-09-20 KR KR1020207010897A patent/KR20200055754A/ko not_active Application Discontinuation
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  • 2018-09-20 CN CN201880061166.0A patent/CN111164055A/zh active Pending
  • 2018-09-20 EP EP18783271.2A patent/EP3684738A1/en active Pending
  • 2018-09-20 WO PCT/US2018/051843 patent/WO2019060474A1/en unknown
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